Feed-water heater



. G. .KEASBEY.

H EEED WATER HEATER.

PatentedJuly 30, 1895.

. IINiTnD STATES ATENT Critica,

HENRY G. KEASBEY, OF AMBLER, PENNSYLVANIA.

FEED-WATER HEATER.

SPECIFICATION forming part of Letters Patent No. 543,690, dated July 30,1895.

v Application filed April 17, 1895. Serial No. 546,151. (No model.)

To all whom t may concern:

Be it known that I, HENRY G. KEAsBEY, a citizen of the United States,residing at Ambler, in the county of Montgomery, State of Pennsylvania,have invented anew and useful Improvement in Feed-Water Heaters, whichimprovement is fully set forth in the following specification andaccompanying drawing.

My invention relates to that class of feedwater heaters in whichproducts of combustion are utilized as the only heating medium, meansbeing employed for introducing the feed-Water into that portion of theheater Where the products of combustion are the coolest and withdrawingthe said feed-water from that portion of the heater where said productsof combustion are the hottest; and to this end it consists insuper-imposing a number of water-holding chambers upon each other, withtheir flues in alignment, and in introducing the feed-water into thebase of the upper chamber and conducting the same from the upper portionof said upper chamber to the lower portion of the adjacent chamberthereunder, and so on, all of said conductingpipes being locatedinteriorly of the heater, all as will be hereinafter set forth.

The figure represents a vertical sectional View of a feed-water heaterembodying my invention.

Referring to thev drawing, A designates a feed-water heater, the samebeing composed of the chambers B, C, D, and E, which are superimposedupon each other, and are held in contact by means of lugs or Iiangesattached to the abutting portions of each chamber, through which boltsand nuts may pass.

Each of the chambers B, C, D, and E is provided with the tube-sheets G',in which are secured the flues ,F for the passage of the products ofcombustion, said flues being substantially in alignment when all of thechambers are in assembled position, the products of combustion beingintroduced through the inlet `flue or passage G, and after passingthrough the several water-holding chambers or compartments B C D, &;c.,being conducted therefrom by means of the hood I-I to the outlet J.

The upper chamber B is provided with the feed-water inlet-pipe L, whichit will be noticed enters said upper chamber at the lower located, itwill be noticed, within said chamv bers B and C and being secured in thetubesheets of the latter in any suitable or convenient manner. In likemanner the contents ofthe chamber O are conducted from the upper portionthereof into the lower portion of the adjacent chamber D thereunderbylmeans of the pipe M, which is suitably sccured in the adjacenttube-sheets of the chambers C and D and has its inlet near the upperportion of said chamber C, while its outlet is near the lower portion ofthe chamber D. In like manner communication is had between the chambersD and E by means ofthe pipe N.

P designates the outlet-pipe for the feedwater, which leads from theupper portion of Said chamber E to the boiler or other desired place.

The operation is as follows: The products of combustion enter by meansof the passage N and pass through the flues of the various chambers tothe outlet J, as stated, it being apparent thatthe products ofcombustion are hottest when they enter the chamber E and coolest whenthey leave the chamberB. The

feed-Water entering said chamber B passes successively through the pipesand chambers thereunder, as indicated by the arrows, until it reachesthe outlet P, it thus being noticed that said feed-water enters theheater at the point where the products of combustion are coolest andleaves vit at the point where said products of combustion are hottest,the ternperature of the same thus being gradually and effectively raisedto the desired degree.

It will of course be apparent that the tubes K, M, and N may be securedin their respective tube-sheets in any suitable manner and that thechambers B C D, &c., may be held in contact with each other in variousways other than that shown. For example,bolts may be employed whichextend through one of the flues, having nuts or washers, dac., on eachend. It will also be evident that the number of chambers may be.increased or diminished, according to requirements, and that other IOOchanges may be made which will come within the scope of my invention,and I do not therefore desire to be limited in every instance to theexact constructions I have herein shown and described.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In a feed water heater of the character described, the chambers B, C,D, dsc., having fines therein, means for holding said cham bers incontact, the pipes K, M, N, dac., said `pipes being located interiorlyof the heater and having their inlets near the tops ot' saidcompartments, and their outlets near the bottoms thereof, the feed pipeL entering said chamber B, near the bottom thereof, at the point wherethe products of combustion arc coolest, and the feed Water outlet pipe Pleading from the lowest chamber, near the point Where the products ofcombustion are hottest,

in combination with inlet and outlet passages for the products ot'combustion, substantially as described.

2. In a feed Water heater, the chambers B, C, D, dac., provided withs'nitable tube sheets and fines, means for holding said chambers incontact with each other, pipes passing through adjacenttube sheets, andhaving their inlet near the top of one chamber, and their outlet nearthe bottom of a chamber thereunder, a water inlet pipe leading into thelower portion of the upper chamber, and an outlet pipe leading from theupper portion of the lowest chamber, and inlet and outlet passages forthe products of combustion, the above parts being combined substantiallyas described.

HENRY G. KEASBEY. [n s] Witnesses:

N. J. HALL,

F. MARKLEY.

